Displaying 3 results from an estimated 3 matches for "vvs2".
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2009 Dec 16
4
Creating Dummy Variables in R
Hi,
I am trying to create a set of dummy variables to use within a multiple linear regression and am unable to find the codes within the manuals.
For example i have:
Price Weight Clarity
IF VVS1 VVS2
500 8 1 0 0
1000 5.2 0 0 1
864 3 0 1 0
340 2.6 0 0 1
90 0.5 1 0 0
450 2.3 0 1 0
Where price i...
2009 Aug 17
1
Display the character variables in a dataset in R
Hi everyone,
After reading the external file into R it will become a R dataset. Now my
querry is i want to dispaly only character variables from that dataset.
please help me in this aspect. if possible send me the code. it will be very
helpful for us.
Thank you in Advance.
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2010 Apr 07
1
ggplot2, density barplot and geom_point layer
...uot;clarity"]]=="SI1","clarity"] <- 3
myDiamonds[myDiamonds[["clarity"]]=="VS2","clarity"] <- 4
myDiamonds[myDiamonds[["clarity"]]=="VS1","clarity"] <- 5
myDiamonds[myDiamonds[["clarity"]]=="VVS2","clarity"] <- 6
myDiamonds[myDiamonds[["clarity"]]=="VVS1","clarity"] <- 7
myDiamonds[myDiamonds[["clarity"]]=="IF","clarity"] <- 8
myDiamonds[["clarity"]] <- as.numeric(myDiamonds[["clarity"...